Electrically-driven spinning centrifugal apparatus



P. MINCK ELECTRICALLY DRIVEN SPINNING CENTRIFUGAL APPARATUS Filed March 12, 1923 P Aug. so; 19 1.

- for the manufacture o rotor of'the electromotor is fixed, while at WUINWITEDE STA PAUL II NCK, OI PETEBSDOBI', GERMANY.

mGALLY-Dm SPINNING CEKTBH'UGAL mmrus.

Application m m 1:, 1020, Serial no. 94,301, and in Germany Inch 12, ms.

' The 1 rfection of 'the innin centripe arti c'alsilk is of great economical rtance, because by means of such a centri the spmmng and twisting process, hitherto'made one after the other may be assembled to one single proceeding of manufacture.

Electrically driven spinmng centrlrelliges, having an undivided spindle, suspend 1n one single neck-journal-bearmg or a thrustbearing and at the lower end of WhlCh the the upper end the inning vessel may be arranged, are alrea y known. As in the known devices the bearin for the. spindle with the rotor and also t ose of the stator are ri 'dly connected with the casing of the 'centri ge, these systems are to be considered in fact as rigid ones, for they do not allow a lay to the rapidly rotating spmdlelor m g a free oscillating movement. Rigid systems of this or similarrkind, however, are not appropriated, because-:they rotate without jerks only if they are balanced ideall As hnown it is impossible to balance'perfectly in-permanent working the splndle of centrifuges with its loads arranged thereon, because the spinning vessel is permanently subjected to the corrosion and the .cond1- tions of load also change interm1ttently during the operation by the alterations of the spin-cakes. The spindle of the centrifuge practically therefore is always not balanced. Such indles have naturally the tendency to dev1ate irom the balanced position and to make an oscillating movement.

If the spindles are, as known, r1g1dly journaled, these. movements are violently prevented. The consequence is that vehement jerks occur, interrupting not only the rigular process 0 spinnlng and wmdmg o of the threads, but endangering the whole device and causing a rapid wear of the bearing.

.A manufacture absolutely rehable 1s obtained by a spinning centrifuge with divided spindle, the lower part of which is rigidly journaled, while the upper 'part is guided elastically in a particular manner.

The present invention has for its object to provide. a spinning centrifuge having an undivided spindle, a single journal-bearing and eventually a thrust bearing for the spindle with .an elastical bearing for the latter.

Trials proved, that the embedmentof the iding bearing in rubber afiordsa security or the complete suppressionof the occurring excentric jerks m such a measure, that this system permits the use of an undivided, that 1s a rigid axle, if the total construction is made correspondingly.

. In the single figure of the drawings is shown a vertical section of a preferred embodiment of this invention.

The embedment of the neck-journal-beara between two strong collars?) of india- 1n ruhber, shown in the drawing, is so stable, that the basket d carrying the'stator '0 of the motor may be fixed centrally without adjustment ofthe sleeve 0: of the bearing.

This latter carries at the top a thrust-bearmg 6, on which the spindle with the rotor' f is suspended in known manner by means of.

a fixed flange or collar g. The spindle with the rotor and stator are now journaled within the stable casing h of the centrifuge by means of. the collars of india-rubber elastically in such a manner, that excentric movements cannot cause any jerks, in whatever direction they may occur.

It has already been tried, to obtain a jerkless movement of spinning-centrifuges by supportingthe whole casing of the centrifuge by means of elastic materials. A result could not betobtained, because in this case the casing of the centrifuge was caused by the rigid connection with the spindle to receive the occurring excentric jerks, whereby violent vlbratlens are brought about in the casing of the centrifuge, consuming a,

great deal of the driving power, and endangering on their part again the soft rotation of the spinning-vessel. According to the invention the oscillation of the casin is avoided by arranging an elastic materia between the casing and the sleeve of the bearing, so that all jerks are su pressed immediately at the spindle itsel The good effect is naturally diminished in a corresponding measure,- if the deforming ca acity of the elastic material is influence by unsuitable pressure or the like.

1. In a spinninghead a shaft, means in which said shaft is antifrictionally mounted, an electric motor pendently mounted below and on one end of said means and arranged to drive said shaft and a rubber support for 1 which said shaft is antifrictionally mounted, an electric motor stator rigidly connected to the bottom said means, a rotor for the motor on said shaft and rubber discs supportin said means, said motor pendently arranged below the anti-friction mounting.

3. In a spinning head, a shaft, antifric tion bearing supporting the shaft, a casing surrounding said shaft, a sleeve between said shaft and said casing, a flange thereon, a rubber packing between the sleeve and casing on each side of said flange, an electric motor stator hung on the lower end of said sleeve and a rotor therefor on said shaft said electric motor partaking of all the movements of the sleeve.

4. In a spinning head, the combination with the driving shaft of anti-friction bearings supporting said shaft, a casing surrounding said-shaft, a sleeve between said shaft and said casing and having a radial projection, and rubber rings between the cas; ing and the sleeve, on opposite sides of the radial projection and an electric motor on the lower end of the sleeve and partaking of all the movements thereof.

5. In a spinning head, a shaft, a sleeve intermediate the ends of the shaft, means to anti-frictionally journal the shaft in the sleeve, an electric motor stator connected to the lower end of the sleeve and a rotor therefor on said shaft, a flange on the sleeve, yielding means engaging t e flange and supporting the sleeve for universal motion, said sleeve being the sole support for said shaft and motor.

name to this specification.

PAUL MINCK. 

